EUVD-2026-64795
GHSA-4x2f-q7jf-fpvv
Severity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
Network-delivered XSS with no authentication (PR:N, AV:N) and required victim interaction (UI:R); scope change justified by WordPress session escape; A:N because XSS does not cause availability impact not explained by the disclosure.
Primary rating from Vendor (Patchstack).
CVSS VectorVendor: Patchstack
Lifecycle Timeline
2DescriptionCVE.org
Unauthenticated Cross Site Scripting (XSS) in Tourmaster <= 5.4.9 versions.
AnalysisAI
Unauthenticated XSS in the Goodlayers Tourmaster WordPress plugin (versions ≤ 5.4.9) allows a remote, unauthenticated attacker to inject arbitrary JavaScript into pages served to victims, with a scope change that can affect the broader WordPress session context. Exploitation requires victim interaction - typically clicking a crafted link - but carries no authentication prerequisite, keeping the barrier to attempt low. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The CVSS vector PR:N confirms no authentication is required from the attacker to deliver the malicious payload to the target site. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 7.1 score is driven primarily by the scope change (S:C) and the network-accessible, zero-authentication attack vector (AV:N/PR:N), but is moderated by the required user interaction (UI:R) and low individual impact ratings (C:L/I:L/A:L). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | The primary remediation is to update the Tourmaster plugin to a version released after 5.4.9 as soon as one is available via the WordPress plugin repository or the Goodlayers vendor site; a specific fixed version number is not confirmed in the provided input data and should be verified directly at the Patchstack advisory (https://patchstack.com/database/wordpress/plugin/tourmaster/vulnerability/wordpress-tourmaster-plugin-5-4-9-cross-site-scripting-xss-vulnerability) or the plugin's official changelog. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: inventory all WordPress installations running Goodlayers Tourmaster version 5.4.9 or earlier and disable the plugin on all publicly accessible instances pending remediation. …
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External POC / Exploit Code
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